The local people informed police yesterday that the family was not opening the door or responding even after repeated calls.
The police then went to the flat and broke open the door and found the bodies of three women - Bijaya Basu, her aunt Prabha Das and daughter Aishree Basu.
Superintendent of Police, Murshidabad, Humayun Kabir said preliminary investigation reveals that they were strangulated to death.
Local people alleged that the woman and her daughter were raped before murdering them.
Bijaya Basu's husband has not seen by the local people for last one year.